| | 1 | Author
| Akiko Kondoh, Takao Oi | Requires cookie* | | | Title
| Interaction of Alkaline Earth Metal Ions with Carboxylic Acids in Aqueous Solutions studied by 13 C NMR Spectroscopy  | | | | Abstract
| 1? C NMR spectroscopic measurements of aqueous solutions containing alkaline earth metal chloride and a carboxylic acid have been carried out to acquire some insight into the coordination manners of various carboxylic acids to alkaline earth metal ions. The dependence of the l 3 C NMR signal positions of the carboxylate carbons on the magnesium ion concentration in a magnesium carboxylate system is a good index to understand the coordination manner of the carboxylate ion. The upfield shift of the car-boxylate carbon signal with increasing magnesium ion concentration indicates that the carboxylate ion acts as a bidentate ligand to form a ring structure. Only in the citrate systems, the existence of a rela-tively stable complex is evidenced in which the citrate ion is expected to act as a tridentate ligand. | | | |
Reference
| Z. Naturforsch. 53a, 77—91 (1998); received December 30 1997 | | | |
Published
| 1998 | | | |
Keywords
| 13 C NMR Spectroscopy, Carboxylic Acids, Alkaline Earth Metals, Coordination, Chemical Shifts | | | |
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| default:Reihe_A/53/ZNA-1998-53a-0077.pdf | | | | Identifier
| ZNA-1998-53a-0077 | | | | Volume
| 53 | |
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